#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>

int main()
{
	int m, n, t;
	printf("please input m and n:");
	scanf("%d%d", &m, &n);
	t = m; m = n; n = t;
	printf("m=%d,n=%d", m, n);

	return 0;
}